Hi,
I just bought a Realtek RTL8029(AS) network card, I put it in my computer on a PCI slot..
Hmmm... RTL8029 is NE2000 compatible, (at least the 10MBS version is...) Have you tried adding an NE2000 card? (Does Zeta let you do that... dunno, haven't got it installed at the moment..)
I've used a RTL8029 card with R5 and Dano/Zeta, so I'm sure it does work. I don't remember jumping through any hoops either. Are you sure that Realtec haven't altered the chipset? the (AS) couls be significant. If you have a R5 box, try it under R5. It should work out of the box.